JP2018155052A - Waterproof member, waterproof structure for building, steel plate for waterproof member and sheet for waterproof member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof member, a waterproof structure for a building, a steel plate for waterproof member and a sheet for waterproof member capable of improving a design property of a portion where an outer wall portion and a roof portion of a building are connected.SOLUTION: This waterproof structure of a building includes a waterproof member 3 at a place where an outer wall portion 1 of the building and a roof portion 2 are connected, and the waterproof member 3 includes: a steel plate 31 having a substantially L-shaped cross section and having an outer wall side portion 311 positioned on the outer wall portion 1 side and a roof side portion 312 positioned on the roof portion 2 side; and a flexible sheet 32 having a lower end side attached to the upper end side of the outer wall side portion 311 of the steel plate 31.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a waterproof member provided at a location where an outer wall portion and a roof portion of a building are connected, a waterproof structure of a building, a steel plate for a waterproof member, and a sheet for a waterproof member.

  FIG. 6 shows a waterproof structure of a conventional building in which a waterproof steel plate 103 is provided at a location where the outer wall portion 101 and the roof portion 102 of the building are connected. The outer wall portion 101 is composed of an outer wall panel integrated with an outer wall material generally used in an industrialized house, and the waterproof steel plate 103 is mounted after such an outer wall panel is attached. The waterproof steel plate 103 has an outer wall side portion 103 a located on the back side of the outer wall portion 101 and a roof side portion 103 b located on the back side of the roof material 1021 of the roof portion 102. The outer wall side portion 103 a is inserted upward from the lower end of the outer wall portion 101 and is provided so as to overlap a waterproof surface portion existing on the back side of the outer wall portion 101. Further, the waterproof steel plate 103 is covered with a rain drainer 105 provided from the lower end of the outer wall portion 101 to the upper end side of the roof portion 102.

  In addition, Patent Document 1 discloses a draining structure that improves the waterproofness of the interstitial frame part in which a step is provided on the frame surface with a simple configuration in the joint portion between the lower end part of the outer wall surface material and the roof member. Has been.

Japanese Patent Laid-Open No. 2006-102308

  However, in the conventional waterproof structure, the outer wall side portion 103 a is formed to have a length necessary for overlapping with the waterproof surface portion existing on the back side of the outer wall portion 101, and Since it is attached by being inserted upward from the lower end, it is necessary to position the lower end of the outer wall portion 101 far away from the upper end of the roof portion 102. For this reason, there is a problem that the finding of the rain drainer 105 is increased, and the design of the place where the outer wall portion and the roof portion of the building are connected is lowered.

  Further, as shown in FIG. 7, since the roof portion 102 is provided with a water gradient, if the waterproof steel plate 103 is merely placed on the roof, a deviation occurs and the posture becomes inappropriate. If it is fastened, it may be necessary to make corrections later.

  This invention provides the waterproof member which can improve the designability of the location where the outer wall part and roof part of a building are connected in view of said situation, the waterproof structure of a building, the steel plate for waterproof members, and the sheet | seat for waterproof members With the goal.

  In order to solve the above problems, the waterproof member of the present invention is a waterproof member provided at a location where the outer wall portion of the building and the roof portion are connected, and the outer wall side portion located on the outer wall portion side, A steel sheet having a substantially L-shaped cross section having a roof side part located on the roof part side, and a flexible sheet attached to the upper end side of the outer wall side part in the steel sheet. And

  If it is said structure, the starting location required by the side of the outer wall part of a building can be ensured with the said sheet | seat. And in inserting the waterproof member upward from the lower end of the outer wall portion of the building, the flexible sheet can be bent and inserted, so the lower end of the outer wall portion of the building is connected to the roof portion. There is no need to position it far away from the upper end. For this reason, even when a rainwater drainer is provided, the finding can be reduced, and the design of the location where the outer wall portion and the roof portion of the building are connected is improved. Moreover, since the waterproof member consisting of the steel plate and the sheet can be manufactured not at the site but at the factory, the quality can be made constant and the cost can be reduced. Moreover, since it is not necessary to affix the said sheet | seat on the said steel plate at the field, the work burden at a field can be reduced.

  The lower end portion of the sheet may be a water return that can swing without being fixed to the steel plate.

  Or you may have a water return in the upper end side of the said outer wall side part in the said steel plate.

  Or you may have a waterproof layer part of a rubber-like body.

  Moreover, you may have the elastic part which hold | maintains the said waterproof member to the said outer wall part in the outdoor side of a waterproof member. When the elastic portion is provided, the waterproof member can be held on the outer wall portion when temporarily placed, so that the waterproof member is prevented from occurring during temporary placement and the waterproof member is placed on the roof portion in an appropriate posture. Can be fastened.

  Further, the waterproof structure of a building according to the present invention is a waterproof structure of a building in which a waterproof member is provided at a location where the outer wall portion and the roof portion of the building are connected, and the waterproof member is on the outer wall portion side. A substantially L-shaped steel plate having an outer wall side portion located and a roof side portion located on the roof portion side, and a flexible sheet attached to the upper end side of the outer wall side portion in the steel plate; It is characterized by providing.

  If it is said structure, the starting location required by the side of the outer wall part of a building can be ensured with the said sheet | seat. And in inserting the waterproof member upward from the lower end of the outer wall portion of the building, the flexible sheet can be bent and inserted, so the lower end of the outer wall portion of the building is connected to the roof portion. There is no need to position it far away from the upper end. For this reason, even when a rainwater drainer is provided, the finding can be reduced, and the design of the location where the outer wall portion and the roof portion of the building are connected is improved.

  The lower end portion of the sheet may be a water return that can swing without being fixed to the steel plate.

  Or you may have a water return in the upper end side of the said outer wall side part in the said steel plate.

  Or you may have a waterproof layer part of a rubber-like body.

  A rain drainer surrounding the outdoor side of the waterproof member may be provided, and the rain drainer may have a water return.

  The steel sheet for a waterproof member of a building according to the present invention is a steel plate used as a part of a waterproof member provided at a location where the outer wall portion and the roof portion of the building are connected, and is located on the outer wall portion side. It has a substantially L-shaped cross section having an outer wall side portion and a roof side portion located on the roof portion side, and has an adhesive portion on the upper end side of the outer wall side portion. According to this, a waterproof member can be efficiently produced in the field etc.

  Further, the waterproof sheet for a building according to the present invention is a sheet used as a part of a waterproof member provided at a location where the outer wall portion and the roof portion of the building are connected, and an adhesive portion is provided on one or both end sides. It is characterized by having. According to this, a waterproof member can be efficiently produced in the field etc.

  If it is this invention, there exists an effect that the designability of the location where the outer wall part and roof part of a building are connected can be improved.

It is a schematic longitudinal cross-sectional view which shows the waterproof structure of the building of embodiment of this invention. It is explanatory drawing which shows the preparation point of the waterproof member used with the waterproof structure of FIG. It is a schematic longitudinal cross-sectional view which shows the waterproof structure of the building of other embodiment of this invention. It is a schematic longitudinal cross-sectional view which shows the waterproof structure of the building of other embodiment of this invention. It is a schematic longitudinal cross-sectional view which shows the waterproof structure of the building of other embodiment of this invention. It is a schematic longitudinal cross-sectional view which shows the waterproof structure of the conventional building. It is explanatory drawing which shows that a waterproof member may shift | deviate in the waterproof structure of the conventional building.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1, the waterproof structure of a building according to this embodiment is a structure in which a waterproof member 3 is provided at a location where an outer wall portion 1 and a roof portion 2 of the building are connected. The outer wall portion 1 is composed of, for example, an outer wall panel, and includes an outer wall surface material 11, a trunk edge 12 provided on the back surface side of the outer wall surface material 11, and a secondary waterproof surface portion 13 provided on the back surface side of the trunk edge 12. And the heat insulation layer board 14 provided in the back surface side of this secondary waterproof surface part 13 is provided. The roof portion 2 includes a field board 21, a roofing 22 provided on the field board 21, and a roofing material 23 provided on the roofing 22.

  The waterproof member 3 includes a horizontally long steel plate 31 having a substantially L-shaped cross section and a horizontally long sheet 32 having flexibility. The steel plate 31 is made of, for example, a ZAM steel plate, and the sheet 32 is made of, for example, polypropylene.

  In the waterproof member 3, the steel plate 31 and the sheet 32 may be integrated in the field, but in this embodiment, the steel plate 31 and the sheet 32 are integrated in a factory. They are brought to the site and used.

  The steel plate 31 has an outer wall side portion 311 rising on the outer wall portion 1 side and a roof side portion 312 located on the roof portion 2 side, and is formed in an L shape by bending. And the lower end side of the said sheet | seat 32 is being fixed to the upper end side of the said outer wall side part 311 in the said steel plate 31 by adhesion | attachment. The sheet 32 has a height that sufficiently overlaps the secondary waterproof surface portion 13 present on the back side of the outer wall portion 1. Further, the lowermost end portion of the sheet 32 is a water return 32 a that can be swung without being fixed to the steel plate 31. The water return 32a can be swung with the edge side of the bonded portion as a pivot point, and moves upward by receiving wind pressure from below. Further, it is desirable that the water return 32a has a length that closes the lower end side (the vent layer end) of the trunk edge 12 when it moves upward. It is possible to prevent wind and rain from entering the room by closing the vent layer end.

  Further, the waterproof member 3 is provided with an elastic portion 33 made of a rubber-like body without gaps in a piece-like arrangement (in a dotted arrangement) or through. The elastic portion 33 is provided on the outdoor side and above the water return 32a, and is fitted into the lower end on the back side of the outer wall portion 1 (below the heat insulating layer plate 14). Thus, the waterproof member 3 can be held on the outer wall portion 1. For the elastic portion 33, for example, a flexible sponge-like material such as an EPDM (ethylene / propylene rubber) foam can be used. Although the elastic part 33 may be affixed to the waterproof member 3 in the field, in this embodiment, the waterproof member 3 having the elastic part 33 already affixed in the factory is brought into the field and used. An outline of a manufacturing example of the waterproof member 3 is shown in FIG. The steel plate 31 and the sheet 32 are attached with an adhesive (such as butyl tape) A. Then, the lower end of the sheet 32 is bent to form a water return 32a, and the elastic portion 33 is bonded and fixed to a location above the water return 32a where the upper end of the steel plate 31 is present.

  When the waterproof member 3 is attached, the upper end side of the seat 32 that is the rising portion is inserted from the lower side of the outer wall portion 1 to the back side thereof. In the insertion operation, the sheet 32 can be easily bent and inserted. The elastic portion 33 can be fitted into the lower end of the outer wall portion 1 by inserting the sheet 32 upward. The waterproof member 3 is held by this fitting, and the unfixed waterproof member 3 can be temporarily placed on the roof portion 2 sequentially in an appropriate posture. In the temporarily placed state in an appropriate posture, a screw or the like is driven into the roof side portion 312 from above to fix the waterproof member 3 to the base plate 21. The thickness of the space into which the elastic portion 33 is inserted is, for example, about 12 mm, and the elastic portion 33 has a thickness that can be stretched in contact with a member that forms the space.

  Further, a rain drainer 4 is provided from the lower end portion of the outer wall surface material 11 to the upper side of the uppermost roof material 23 of the roof portion 2 so as to cover the waterproof member 3. A seal portion using an indeterminate seal is formed between the upper end portion of the rain drainer 4 and the lower end of the outer wall surface material 11. A seal portion is also formed between the lower end portion of the rain drainer 4 and the roof material 23. Note that an air intake is formed at a rising portion on the lower side of the rain drainer 4.

  If it is said structure, the starting location required by the side of the outer wall part 1 of a building with the said sheet | seat 32 can be ensured. And in inserting the said waterproofing member 3 upward from the lower end of the outer wall part 1 of the said building, since the sheet | seat 32 which has the said flexibility can be bent in, the lower end of the outer wall part 1 of the said building is inserted. There is no need to position the roof portion 2 far away from the upper end. For this reason, even when the rainwater drainer 4 is provided, the finding can be reduced, and the design of the location where the outer wall portion 1 and the roof portion 2 of the building are connected is improved.

  Further, since the roof portion 2 is provided with a water gradient, if the waterproofing member 3 is temporarily placed on the roof, the roof tends to become inappropriate due to a shift. If the elastic portion 33 is provided, the waterproof member 3 can be held on the outer wall portion 1 when temporarily placed. Can be fastened to the roof portion 2. In addition, if it is the structure which provides the said elastic part 33 not through a piece but through, this elastic part 33 becomes a structure which serves as a waterproof layer part.

  In addition, when the waterproof member 3 composed of the steel plate 31 and the sheet 32 is manufactured at a factory instead of in the field, quality can be made constant and costs can be reduced. Moreover, since it is not necessary to affix the said sheet | seat 32 on the said steel plate 31 on-site, the work burden on-site can be reduced.

  Another embodiment will be described with reference to FIG. The waterproof member 3 of this embodiment also includes a steel plate 31 and a sheet 32, and a water return 31 a is formed in the steel plate 31. For example, the upper side portion of the outer wall side portion 311 of the steel plate 31 is folded downward, and the leading end side of the folding protrudes in the outdoor direction. This protruding portion is inclined downward toward the outdoors, and this inclined portion forms the water return 31a. In addition, although it may protrude horizontally instead of a downward inclination, the lower end (ventilation port end) of the trunk edge 12 is not blocked. The lower end of the sheet 32 is bonded to the outdoor side surface of the folded portion of the outer wall side portion 311.

  The embodiment shown in FIG. 4 has a long waterproof layer 34 with a rectangular cross-section made of a flexible sponge-like material such as foam of EPDM (ethylene / propylene rubber). The waterproof layer portion 34 is provided on the outdoor side of the bonding portion between the steel plate 31 and the sheet 32. A water return 32 a is not formed at the lower end of the sheet 32. The waterproof layer portion 34 can also function as the elastic portion 33. When the waterproof layer portion 34 having this function is fitted into the lower end of the outer wall portion 1, the waterproof member 3 is held, and the unfixed waterproof member 3 is temporarily placed on the roof portion 2 sequentially in an appropriate posture. Can continue.

  The presence of the waterproof layer portion 34 and the elastic portion 33 is a mark, and there is an advantage that an operator can insert the waterproof member 3 to an appropriate position in the field.

  In the embodiment shown in FIG. 5, the rain drainer 4 has a water return 4 a extending in a drooping manner inside thereof. Thus, even if the rain drainer 4 has the water return 4a, the water return can be appropriately performed. Although the waterproof layer portion 34 is provided in the form of FIG. 5 as well, since the water return 4a is provided, the elastic portion 33 arranged in a piece shape may be provided instead of the waterproof layer portion 34. .

  When the steel plate 31 and the sheet 32 are provided separately for the waterproof member 3, for example, a release paper may be provided at the location of the adhesive portion A of the sheet 32 shown in FIG. 2. In other words, as a sheet for the waterproof member 3 provided at a location where the outer wall portion 1 and the roof portion 2 of the building are connected, a waterproof member sheet having the adhesive portion A and the release paper on one end side is provided. Good. Thus, when the waterproof member sheet and the steel plate 31 are brought into the field and integrated into the waterproof member 3, the release paper is peeled off and the adhesive portion A of the sheet 32 is attached to the steel plate 31. Since it is good, the said waterproof member 3 can be produced efficiently on-site. Of course, you may provide the sheet | seat for waterproof members which has the adhesion part A and a release paper in the edge side of both surfaces instead of single side | surface. Thus, when it is set as both surfaces, the other surface can be utilized for affixing the said waterproofing layer part 34, for example.

  Or when the steel plate 31 and the sheet | seat 32 are provided separately about the said waterproof member 3, the adhesion part may be provided in the steel plate 31 side, and the release paper may be affixed on this adhesion part. That is, as a steel plate for the waterproof member 3 provided at a location where the outer wall portion 1 and the roof portion 2 of the building are connected, the outer wall side portion 311 located on the outer wall portion 1 side and the roof portion 2 side. A waterproof steel plate having a substantially L-shaped cross section having a roof side portion 312 positioned and having an adhesive portion and release paper on the upper end side of the outer wall side portion 311 may be provided. Accordingly, when the waterproof steel sheet and the waterproof member sheet are brought into the site and integrated into the waterproof member 3, the release paper can be peeled off and the bonding work can be performed. In addition, the waterproof member 3 can be produced.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

DESCRIPTION OF SYMBOLS 1: Outer wall part 2: Roof part 3: Waterproofing member 4: Rain water draining 4a: Water return 11: Outer wall surface material 12: Trunk edge 13: Secondary waterproofing surface part 14: Heat insulation layer board 21: Base plate 22: Asphalt roofing 23 : Roof material 31: Steel plate 31a: Water return 32: Sheet 32a: Water return 33: Elastic part 34: Waterproof layer part 311: Outer wall side part 312: Roof side part

Claims (9)

  A waterproof member provided at a location where an outer wall portion and a roof portion of a building are connected, the cross section having an outer wall side portion located on the outer wall portion side and a roof side portion located on the roof portion side A waterproof member comprising: an L-shaped steel plate; and a flexible sheet attached to an upper end side of the outer wall side portion of the steel plate.   2. The waterproof member according to claim 1, wherein a lower end portion of the sheet is a water return that is swingable without being fixed to the steel plate.   The waterproof member according to claim 1, wherein a water return is provided on an upper end side of the outer wall side portion of the steel plate.   The waterproof member according to claim 1, further comprising a waterproof layer portion made of a rubber-like body.   The waterproof member according to any one of claims 1 to 3, further comprising an elastic portion that holds the waterproof member on the outer wall portion.   A waterproof structure of a building in which a waterproof member is provided at a location where the outer wall portion of the building and the roof portion are connected, and the waterproof member includes an outer wall side portion located on the outer wall portion side and the roof portion side. A building waterproofing comprising: a steel plate having a substantially L-shaped cross section having a roof side portion located on the top surface; and a flexible sheet attached to an upper end side of the outer wall side portion of the steel plate. Construction.   The waterproof structure for a building according to claim 6, wherein a rainwater drainer surrounding the outdoor side of the waterproof member is provided, and the rainwater drainer has a water return. .   A steel plate used as a part of a waterproofing member provided at a location where the outer wall portion and the roof portion of the building are connected, and the roof located on the outer wall side portion located on the outer wall portion side and the roof portion side. A steel sheet for waterproof members, having a substantially L-shaped cross section having a side portion, and having an adhesive portion on an upper end side of the outer wall side portion.   A sheet for waterproof members, which is a sheet used as a part of a waterproof member provided at a location where an outer wall portion and a roof portion of a building are connected, and has an adhesive portion on one or both ends.

Images